Numbchux

I would argue the point as to which is better. the only advantage I've seen, is more storage room in the car since there effectively aren't strut towers. also, look closely at the WRC08 cars. they are not multi-link..... But, one thing is for sure, there is far more aftermarket support for the modified macpherson setup. adjustable links/arms, struts, springs, coilovers etc. etc. also, I wouldn't recommend running the stock multilink rear shocks on an EA82. they are not designed to use a bushing between the shock rod and upper mount.....I removed it, and snapped that rod in about 1k miles. WJM did the same on his RX with the same results. Although there is a miata shock that is a direct bolt-in with coilover sleeve springs. full coilovers designed for the multilink setup can be used with the upper bushing. but again, your selection is very limited. better now that the imprezas share that platform, but you're still looking at either el cheapo coilovers, or uber expensive ones. Either way. like Gary said, you sound like you have a decent idea of what you're doing, and the means to do it. In which case you have nothing but support from me. I'm just offering my experience with building subarus for use in all kinds of motorsports to get you the best setup possible. I'm still un-sure of your reasoning for doing this, so I'm kinda shooting in the dark....but either way. Also, what are your plans for the front? If you're going to that kind of trouble to improve your geometry in the rear....you'll have a similar project in the front, or it will all be for nothing.

loyales don't have rear speakers. the mounts are in the rear doors for them, though.

anything's possible: IMHO, there aren't enough gains to justify the project. unless you have a lot of time, money, and donor cars to hack up.....and even then, I don't know why. if you're going to hack up the back of the car, and put in an entirely new suspension system, at least use the modified macpherson setup that's so much more common. then you'll have a ton of options for suspension setups.

I'm more interested in this....so it's AWD? what low range gears? what front diff?

hell yea. that frame you've built for it looks pretty wicked. Can't wait to see the end result!!

I don't know of any aftermarket ECU that can run a standard OBD diagnostics port. But they all have some way of communicating with a computer to monitor and adjust it. usually a Serial or USB cable. What are you trying to do?

Sweet! not having an 02 sensor must have been throwing it into limp mode as soon as it was hitting boost. which EA82t sensors are you using? I'm curious about that. very interesting that that worked.....

yep, pressure and flow ratings are almost the same. the turbo EJs require quite a bit more volume, but any N/A one will be fine.

for starters, I'm no expert. but I've done some CR calculating.... I think you are going to need to start with some math, and finding out exactly what ratios these combinations would yield. I've heard of people just filling the chamber with oil and measuring it. as far as I know, shaving the heads and using thinner gaskets will have the same (or very similar) effect on the compression. I think the best option, would be shaving the heads, using stock gaskets, and then using custom pistons to dial in your CR. I know there are companies that make custom pistons for the EJs (my buddy just got a set from CP pistons), but they make them unique to your exact bore measurements, valve reliefs, and CR. it seems that they could make them for a different motor......I dunno.

yea, 02 sensor would probably be a good idea....but I don't think it would cause the condition you have. only 3 things, I can think of, would cause it to fall on it's face like that. faulty knock sensor, pulling timing. faulty pressure sensor, sensing over-boost and cutting fuel. or insufficient fuel delivery. we know your fuel pump is rated for a fraction of the flow required for the engine, so I would wait to bash your head against the wall until you've solved that. you don't really need to hold out for the 255. unless you plan on some pretty serious mods. stock is 150 (which is about 40gph). here's one that would work very well with the stock motor for much less than the walbro: http://www.summitracing.com/parts/SUM-G3138/

my ideal setup wouldn't have very good crawl ratios, because I want to use an automatic. I'd also like to use an R180 rear end, and AFAIK, the lowest they were geared was a 3.90.... but I think an auto trans designed for a gas motor, behind a diesel, would be kickass. also.....a built/loaded baja like that, probably 3500 lbs. But, that setup is if money were no object. I'm not the one to talk to about really going hardcore on a reasonable budget with a subaru. I hit my breaking point (pun intended ), and switched to a Toyota.....

my money is on fuel pump. the EA82t pump is about 2/3 the volume of the EJ22t one.....not enough. as soon as it gets into boost, and really opens up those injectors, the pressure drops, and takes a minute to catch up.

STi, definitely. '05+ to be specific. but those would require 5x114.3 hubs and such. somewhere around 25:1. what's the lo range on an EJ16 box? lower than the EA82 1.59? unfortunately, VDC is only available with the auto. it would not be easy to get it to work without the TCU.

yes

yep, just take the flywheel and clutch off your '98 motor, and bolt it onto the '92. no problem.

^I think aftermarket parts, designed for a subaru are acceptable when discussing an "All Subaru" wheeler. but taking parts off of another car brand, and fabricating them to work on a subaru is over the line. bigger tires weren't designed for subarus..... wheels....well, yea. almost no options. some AA wheels that were made for subarus, but I think we might have to overlook that. that said.... some pretty conservative suggestions. he said ANY combination of subaru parts. Subaru made a ton of sweet stuff Baja made into a 2-door, longbed Exocage/tube bumpers/integrated winch EDM Subaru diesel swap some big ol' redneck exhaust stacks behind the cab 8" of lift (probably 8" blocks at the crossmembers, replacing the stock 1" block, 8" total strut extensions, stock struts, and mild lift springs.) 31" Kumho M/T tires on 15" Team Dynamics wheels 276mm front brakes and 290mm rear r180 rear diff/axles/hubs, probably welded. now, the transmission is the hard part. as I don't know what was available with the diesel. But I'm thinking a 5EAT for a gas motor would probably be geared pretty low for a diesel. add the big tires, and it would probably be just fine on the freeway. add a big ol' tranny cooler, and let the TC slip offroad. SoobieDoo is onto something with the VDC thing. if you've got 10 minutes, check out this video.....the subaru VDC demo is pretty cool: I think it would be very hard to retrofit....but the results could be pretty sweet.

both temp sensors are on the coolant bridge. one for the gauge, one for the ECU. I think the ECU is the 2-wire one. That's not a bad idea, if the ECU isn't sure how warm the engine is, it could effect your idle and such.

valves and such are comparable to 2.2 stuff. you would gain some grunt from the compression bump....but that's about it. you'd be better off throwing a 2.5 shortblock under the 2.2 heads.

I'm not sure. I've never had an outer joint apart. but from the joint, out, they're very different. I'm not 100% sure what you're doing, so let me clarify. you've got XT6 hubs and knuckles, and an RX trans. And you have a set of EA82t axles that you'd like to use. And either way, the axle has to be shortened to work with the EA81 track width. If I'm understanding that correctly, I would say getting XT6 axles and having them shortened would be worth the extra effort. you'll need the XT6 outer joint/stub anyway, and the XT6 inners are already 25 spline.

easy. as far as the head-to-block mating, yes. as a general rule, intake mani has to match the heads (there are exceptions, in this case, 1.8 and 2.2 are interchangeable). also as a general rule, heads from larger-displacement engines have a larger quench volume, and vice versa. so swapping around will effect compression. also, using heads for a much larger bore can cause issues with the headgasket mating surface (I have heard of issues with N/A 25D heads on 18s to be specific). capn_r. *my understanding is* the quench volume of the heads *technically* effects the volume of the overall combustion chamber. but it's only a couple ccs each, so it's not enough to substantially effect the displacement (for example, a 2.2l is 2212 ccs, with 1.8 heads, it's probably 2204). but at TDC, it's a substantial change, so noticeably effects the compression ratio.

standard EA82 transmission crossmember is pretty different. it's one piece, and too far forward But XT6s use a 3-piece crossmember, much like the EJs. if you get your hands one the front and rear crossmember from a Manual XT6, you can put the EJ center section between them, and it will all bolt right into your EA82 (although, you'll still need to shorten your driveshaft 2"....). otherwise.....custom. as XT6 parts are not exactly easy to find. I was looking at some EA82 parts though, and they still have both pieces, but only the front one supports the weight. I'm sure with some drilling and a little fabricating, you could put an EJ center section between the EA82 ones. but I haven't tried that.

oops, thought you meant you could only find '92 diagrams. yea, like Gloyale said, you could use the entire harness from the '92, but the engine harness will be slightly different....

nice, than that should be pretty good. my 215/65r15 snow tires made it just barely liveable, so your extra height and slightly lower gears should be pretty decent. good work!

ignore the distributer comment, not applicable. technically, yea, the smaller quench volume of the 1.8 heads will change your displacement, but only by about 8ccs. Also, I think standard EJ22s already use the thicker headgasket, so you could only increase the compression ratio by changing the gasket. stock 2.2 compression ratio is 9.5:1. I think 1.8 heads brings it to like 10.5 or so. should make for some sweet torque, but you'll need to run premium gas to prevent detonation.

no, outer splines are completely different XT6 vs EA82. the XT6s are almost identical to EJ stuff there.